what would happen if alligators were removed from the ecosystem

Amphibians are good indicators of significant environmental changes. Alligators have been in Florida for centuries and can be found in all 67 counties. Terrifying ordeal from the neighbor who witnessed fatal alligator encounter, Wildlife officials investigate woman's death at golf community, In Florida, what's more dangerous than paddling with gators? How can you avoid getting attacked by an alligator? As the dry season approaches and water dries up from other areas within the Everglades, the retained water causes alligator holes to become a refuge for a variety of wildlife. (2) Efficient level of output. a.Producers b. Sitting at the top of the food chain, alligators are apex predators and help keep other animal populations in balance. (5.4) Price per 2-year-old llama ($) a.Increased terrestrial grass growth It, A: Environmental issues have to be addressed through public intervention even if it is taking place in, A: The tragedy of the commons situation in economics can be understood when the individuals neglect the, A: F1=250(x1)-4(x1)2wherexiisthenumberofboatsfishingthere. Under consumption, which could lead to less profit. benefit to consumer = area between, A: Answer: However, we do not guarantee individual replies due to the high volume of messages. Females provide parental care, including assisting the hatching process and carrying the newly hatched young from the nests, which are located on land, to the water. b.An increase in the amount of atmospheric carbon dioxide 8) If the oyster population was reduced what would you expect to happen to the quantity of Select all that apply. a.With fewer large fish, marine mammals feed on more small fish 125 ", If you're being chased by an alligator, run straight, don't try to zig-zag. 10% c. 25% d. 100%, According to the biomass pyramid, how much biomass of grass is needed to support 300 kilograms of insect biomass? Your feedback is important to us. hb```a``* @(an0X[m4?E ?B>);j6sfyV D@ U( c. it takes 50 black rat snakes to feed 1 hawk, According to the pyramid of numbers given, which of the following statements are true? 2011-03-25 06:08:30. Share the story of this animal with others. The sun If you encounter an alligator you think will be a threat to people, pets or property, call the FWCs Nuisance Alligator Hotline at 1866FWCGATOR (3924286) or visitmyfwc.com. The wild population may be fewer than 150 individuals. 116 1.50 c.Their diet will change to include fish and small crustaceans A. Donnelly, an expert on amphibians and reptiles, recommends you never allow children or pets to play, swim or exercise in bodies of water theses reptiles may call home. a. The minnow and the salmon Feeding activity is governed by water temperature, and foraging ceases if the temperature drops below 68 to 73 degrees Fahrenheit. 300 kcal c. 3,000 kcal d. 30,000 kcal, Which two organisms are primary consumers in the food web? a. Squirrel b. Beetle c. snake Firms do not make profits of any kind Number of llamas on the commons scavenger. It's smaller, the head is more robust and its snout is slightly upturned. Females remain near the nest during the incubation period, which averages 58 to 63 days. (5.4) (5.4) a.Energy, like nutrients, is recycled in an ecosystem State law also prohibits killing, harassing or possessing alligators except under permit. (5.4) Web7) If whales, sharks, seals and alligators were removed from the ecosystem what would you expect to happen to the numbers of predatory fish? part may be reproduced without the written permission. Alligators and Hydrology Water depths and durations in the Everglades have been transformed by drainage and impoundment. As water depth decreases, prey becomes concentrated in alligator holes, alligators capture more prey, and body condition increases. That's a long list, More:77-year-old woman bitten by alligator in Lakewood Ranch retirement community. Last year, a 47-year-old man was killed while looking for Frisbees along a lakeshore in Largo and an 80-year-old woman was killed after falling into a pond at a country club south of Sarasota. C. tertiary succession. In 2018, there was one fatality here, nine major alligator bites and one minor bite on people. Although these animals become easy prey for alligators and other predators such as wading birds, the value of the refuge outweighs the risk. About 100 Chinese alligators are managed under the Species Survival Program in North American institutions. c. herbivore d. Carnivore, they help to recycle nutrients back into the soil, Why are fungi and bacteria important in a food chain or food web? WebUnder consumption, as hunters switch to a new animal to hunt. c.Fewer zooplankton become available b.The consumers would have to replace the decomposers in the transfer of energy Each year in April, the alligators emerge from their winter burrowsand find sunny spots in which to bask. The abatement costs of one ton of pollution is $173 for Firm A and $76 for Firm B. d.Grasshoppers would increase, and snakes would decrease, the snakes are increasing with fewer predators feeding on them, 31. a. The food chain will be disrupted if the grasshopper is removed Leopards in Africa attack and consume people. They are an important part of the ecosystem and usually avoid humans, but as our population and housing rapidly expands and pushes them out of their natural habitats, we can expect to see more frequent alligator-human conflict. Small animals would outbreed the food supply. About the Smithsonian Conservation Biology Institute, #CheetahCubdate 9: An Ice Bucket Challenge. d.The energy in ecosystems flows from decomposers back to producers d.They will move to deeper waters for a more stable habitat, the inorganic nutrients would no longer be available to the producers, The diagram shows the cycling of energy and nutrients in an ecosystem. Click here to sign in with d.They are an important food source for secondary consumers, available energy decreases because some is released as heat into the envioronment, As energy moves through a food web, what happens to the amount of available energy at each trophic level? An alligator can go through 3,000 teeth in a lifetime. If the gator went extinct ,it would take away the top predator in the everglades and would allow the prey animals numbers to explode to dangerous levels, throwing the ecosystem into chaos. b.Their population will further decrease c. zooplankton d. Fish d.They will begin to compete with killer whales for habitat space, Which organisms in the food chain receive energy directly from the producer? In the pond community, the frog population is drastically reduced by this infection. It is a cost which is incurred by the society\ Firm\ Individual (third party) due, A: McDonald's takes a variety of steps to ensure that it is up to date on environmental issues. By using our site, you acknowledge that you have read and understand our Privacy Policy Which of the following most likely describes the effect of the drought on this food chain? c.The grasshoppers are beginning to feed on the mice too WebAmerican alligators were once threatened by extinction, but after being placed on the endangered species list in 1967, their population increased. c.The consumers would get their energy directly from the sun (5.4) Completed nests are about 3.5 feet high and twice as wide. Prepared by George H. Dalrymple Most alligator and crocodile populations are in trouble. (5.4) This is, A: Cattlemen use portion of the ground adjacent to the fence for dog breeding. Price A critically endangered cousin of the American alligator, it is one of the few alligators outside of the Americas. Elephants in India destroy crops and homes. (1) Market equilibrium level of output Foxes, in turn, can eat many types of animals and plants. The female opens the nest in response to calls from the hatchlings when the eggs are ready to hatch. b.Plants get energy from the animals that consume them By killing the competitors of the other species 0 d. Nuclear power plants, Algae receive energy directly from the sun which makes them which of the following? The species that exist today were those that were not wiped out when the dinosaurs died. d. Foxes, a. an ecosystem that has 1000 squirrels must produce at least 800,000 acorns The hawk population in this grassland ecosystem is suffering losses due to a poxvirus rapidly spreading disease among the hawks. b.Their population will decrease Now more than ever, we need your support. 106 0 obj <> endobj a. Bird b. Squirrel c. snake d. Mouse e. Eagle f. seeds, Which of the following makes up the base of all ecological pyramids? Their populations should go up because nothing else, except birds, eats them. A. 8,000 William J. Baumol, Alan S. Blinder, John L. Solow. Dwindling populations of alligators were the result of hunting and loss of habitat, and the American alligator was listed as an endangered species in 1967 under a law that preceded the Endangered Species Act of 1973. Springtime courtship rituals are complex and can last for several hours. Firm A currently dumps 223 tons of chemicals into the local river. The American alligator is a freshwater species, while the American crocodile can thrive in both freshwater and saltwater habitats. Perhaps the greatest contribution the alligator makes to the ecosystem and its inhabitants are gator holes that adults create and expand year by year. The discarded salmon carcasses provide nutrients downstream and to terrestrial landscapes. As a result, the marine mammal population also decreases. Make a donation to the Smithsonian's National Zoo and Conservation Biology Institute today! WebBurmese pythons and American alligators will not battle over the course of millions of years for the same reason this highly imbalanced ecosystem arose in the first place: human intervention. Members are our strongest champions of animal conservation and wildlife research. (5.4) 2008 ). Heithaus, an expert on apex predators, reminds you to be vigilant when you are near shorelines, especially between dusk and dawn when they are most active. Since there are multiple questions we will answer only the first three questions. However, if they sense something splashing in the water, they are likely to bite first and ask questions later. The villagers make their investment decisions one after another, and their decisions are public. Bellowing occurs among males and females during the breeding season. Chinese alligators usually grow to about 5 feet (1.5 meters). Alligators can be found in practically all fresh and brackish water and sometimes in salt water. Marginal private costs are below marginal social costs Dentition includes blunt teeth adapted well to crushing shelled animals. P 0.50 An organism that eats a secondary consumer. A: Negative production externality occurs when the action of a supplier or a producer affects the third, A: a. "The animals have nowhere else to go. Which statement best describes a result of a change in the salmon population? 2 c.It takes 50 black rat snakes to feed 1 hawk As alligators disappeared from the food chain, being at the highest trophic level, there would be a population increase in their prey such as fish, birds, amphibians, and other animals. WebFemale alligators choose nest sites above the water level to reduce the chance of flooding, which would kill most eggs within 12 hours of submergence. Predators that are normally controlled by alligators can become uncontrollable if there is decline in the species. But they can move very quickly for short distances on land and they can lunge. Zone2hasfewerfishpermile, A: .Externality is a situation when the consumption/production of a good/service affects people around, A: Tragedy of the commons:- It is an economic problem that occurs when individual only think about his, A: The marginal cost of emissions is the extra environmental impact incurred as a consequence of, A: The externality would result in the effect of another party on another party's production of good or, A: sd1 is long run domestic supply curve (5.4) a. Trout b. Smelt c. zooplankton d. Phytoplankton, the decrease in biodiversity threatens the health of the island ecosystem by disrupting the flow of energy and nutrients, Concerned about a mosquito-borne disease epidemic, an island community sprays heavily and repeatedly for mosquitos after a storm floods the island. WebIf alligators are removed from their native ecosystem, it would affect countless other species. a.An ecosystem that has 1000 squirrels must produce at least 800,000 acorns Fish and Wildlife Service were to reduce or eliminate the tags required to hunt alligators? 123 0 obj <>/Filter/FlateDecode/ID[<93E991B1199D6F4E9357DDCAA54428F6><343B39741742DF4D8DDE3981286D7CE2>]/Index[106 39]/Info 105 0 R/Length 92/Prev 132464/Root 107 0 R/Size 145/Type/XRef/W[1 3 1]>>stream Some may weigh up to 85 pounds (38.5 kilograms); however, most weigh less than 50 pounds (23 kilograms). googletag.cmd.push(function() { googletag.display('div-gpt-ad-1449240174198-2'); }); FIU biologists Mike Heithaus and Maureen Donnelly offer insight on this native predator. a.Fewer salmon will allow bears to the thrive and produce more offspring When danger threatens, she will rapidly return to the nest to protect her eggs. When you feed them, alligators can overcome their natural fear of humans and start to associate them with food. 10 b. A cubic foot of carbon monoxide pollutes the environment, and has a social cost of $2.5. d.A decrease in the number of apex predators, with fewer large fish, killer whales prey on more marine mammals, Commercial overfishing of large fish in this ecosystem drastically decreases the large fish population. Chinese alligators can live up to 70 years in human care. (5.4) (5.4) d. Decomposers, Which is "lost" to the environment as heat making it unavailable for recycling? (5.4) a. c. decomposers d. carnivores, Use the generic food chain to answer the question. The juveniles aggregate in pods that may include hatchlings from other nests and remain close to the mother typically as long as one year, but sometimes for two or even three years. d. Aquatic vegetation e. Insects Firms A, B, and C produce respectively 1, 2, and 3 cubic feet of carbon monoxide per megawatt produced. a. Grasshopper b. What would be the total cost of reducing pollution, if the firms are allowed to trade permits between each other? (5.4) c.Abundant salmon will allow bears to thrive and produce more offspring 119 Still, the FWC says the chances of a Florida resident being seriously injured in an unprovoked alligator attack are one in 3.1 million. That's a long list, 77-year-old woman bitten by alligator in Lakewood Ranch retirement community, Nuisance alligator numbers way up in St. Johns County, Palm Coast gator gets new home after showing up at apartment door, Texas graduate poses with 14-foot alligator in wild photo shoot, Running zigzag won't help you and gators can climb, Florida man survives in swamp for three days after losing arm to alligator, meaning there could be an increase in alligator activity, So expect more neighborhood gator sightings, Your California Privacy Rights / Privacy Policy.

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